Lighting fixture



FIG. 1 is a front view of a lighting fixture that has the design.

FIG. 2 is a front view with the lighting fixture illuminated, illustrating the ornamental effect.

FIGS. 3 and 4 are front and side orthogonal views of the lighting fixture, illuminated and unilluminated; and,

FIG. 5 is a back and side view orthogonal view of the lighting fixture.

The broken lines in FIG. 5 represent portions on the back of the lighting fixture that form no part of the claimed design. 

CLAIM The ornamental design for a lighting fixture, as shown and described. 